bluelines:

Apparently the GT3 engine is replaced in the factory by one of the new turbo-charged 4-cylinder engines incorporating PMS (Porsche Motorsport Sound) for a synthetic Metzger-engine sound through the PCM speakers. For owners with the Bose upgrade there will be PMS Plus incorporating multiple vehicles from the 356 up to the Panamera Hybrid for a versatile aural experience beyond belief.

Due to popular demand you can optionally get a clutch pedal installed (in aluminium, carbon or mahogany) when your GT3 is in the factory. The clutch pedal is connected to the PDK paddles and when pressed it triggers the simultaneous pull on the left and right paddles to disengage the PDK clutch plates.

Enjoy! 

very funny Smiley